The 2nd U.S. Circuit Court of Appeals in Manhattan rejected Adis Medunjanin’s claims that his 2012 trial was unfair because statements he made to FBI agents and police detectives should have been suppressed.

Three men facing federal terrorism charges in New York City have strong ties to the same extremist Islamic group that’s claimed responsibility for the deadly attack on an upscale Kenyan shopping mall, U.S. authorities say.

While giving the FBI and other law enforcement agencies credit for thwarting a bomb plot against the Federal Reserve Bank in Lower Manhattan, New York City Police Commissioner Ray Kelly said the threat of terrorism will be “with us for a long time.”

Adis Medunjanin, a former security guard, agreed to become a suicide bomber targeting the New York City subway system, prosecutors said. The plan has been called the most significant terror plot on United States soil since 9/11.